From 52ef6d1b6f2c4be99426929fc98b17dc7e7e96fc Mon Sep 17 00:00:00 2001
From: Aaron Pham <29749331+aarnphm@users.noreply.github.com>
Date: Tue, 06 Feb 2024 06:12:31 +0000
Subject: [PATCH] fix(search): set background-color for icon within preview panel (#815)

---
 quartz/components/scripts/toc.inline.ts |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/quartz/components/scripts/toc.inline.ts b/quartz/components/scripts/toc.inline.ts
index f33d8f5..546859e 100644
--- a/quartz/components/scripts/toc.inline.ts
+++ b/quartz/components/scripts/toc.inline.ts
@@ -16,7 +16,8 @@
 
 function toggleToc(this: HTMLElement) {
   this.classList.toggle("collapsed")
-  const content = this.nextElementSibling as HTMLElement
+  const content = this.nextElementSibling as HTMLElement | undefined
+  if (!content) return
   content.classList.toggle("collapsed")
   content.style.maxHeight = content.style.maxHeight === "0px" ? content.scrollHeight + "px" : "0px"
 }
@@ -24,10 +25,12 @@
 function setupToc() {
   const toc = document.getElementById("toc")
   if (toc) {
-    const content = toc.nextElementSibling as HTMLElement
-    content.style.maxHeight = content.scrollHeight + "px"
-    toc.removeEventListener("click", toggleToc)
+    const collapsed = toc.classList.contains("collapsed")
+    const content = toc.nextElementSibling as HTMLElement | undefined
+    if (!content) return
+    content.style.maxHeight = collapsed ? "0px" : content.scrollHeight + "px"
     toc.addEventListener("click", toggleToc)
+    window.addCleanup(() => toc.removeEventListener("click", toggleToc))
   }
 }
 

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